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May Weather in Porto-Novo, Benin

Last updated: August 22, 2025

In May, the average temperature in Porto-Novo, Benin hovers around 28°C (82°F). Expect a minimum of 23°C (74°F) and a maximum of 32°C (89°F), creating a warm climate. Be prepared for some rain, with an average precipitation of 144 mm (5.7 in) spread over 24 days. The air is quite humid, with an average humidity of 83%, contributing to the overall tropical feel of the month.

May Temperature in Porto-Novo

In May in Porto-Novo, the average temperature is 28°C (82°F). Maximums can reach 32°C (89°F) and minimums can be as low as 23°C (74°F). This makes Porto-Novo an ideal destination for travelers who enjoy warm weather and outdoor activities.

May Weather in Porto-Novo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Porto-Novo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porto-Novo, May typically has an average temperature of 28°C (82°F), with highs reaching up to 32°C (89°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec818383838280787879808182
Data source: Temperature data for Porto-Novo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Porto-Novo

In Porto-Novo in May, the precipitation amount is 144 mm (5.7 in) spread over a duration of 24 days.

May Precipitation Trends in Porto-Novo

The chart displays monthly precipitation patterns in Porto-Novo, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Porto-Novo, May typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec215179821442491661461962309443
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Porto-Novo

In Porto-Novo in May humidity is 83%. With an average temperature of 28°C (82°F), this humidity feels like stepping into a warm, thick blanket, making travel languid and drenched in sweat.

May Average Humidity in Porto-Novo

This chart illustrates the average monthly humidity levels in Porto-Novo, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Porto-Novo is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec36%45%60%75%83%86%87%90%91%89%82%68%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Porto-Novo

In Porto-Novo in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Porto-Novo.

Maximum UV Index Levels in Porto-Novo for May

The chart shows the monthly maximum UV Index (UVI) for Porto-Novo in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Porto-Novo typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1111121412111212121299
Data source: Porto-Novo May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Porto-Novo Compares to Other Months

Weather in Porto-Novo varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Porto-Novo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Porto-Novo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (82°F)21 mm (0.8 inches)36%extreme
February Weather28°C (83°F)51 mm (2.0 inches)45%extreme
March Weather28°C (83°F)79 mm (3.1 inches)60%extreme
April Weather28°C (83°F)82 mm (3.2 inches)75%extreme
May Weather28°C (82°F)144 mm (5.7 inches)83%extreme
June Weather27°C (80°F)249 mm (9.8 inches)86%extreme
July Weather26°C (79°F)166 mm (6.5 inches)87%extreme
August Weather25°C (78°F)146 mm (5.7 inches)90%extreme
September Weather26°C (79°F)196 mm (7.7 inches)91%extreme
October Weather27°C (80°F)230 mm (9.1 inches)89%extreme
November Weather27°C (82°F)94 mm (3.7 inches)82%very high
December Weather28°C (82°F)43 mm (1.7 inches)68%very high

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